disc brake way to sensitive..... - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Suspension - Brakes - Steering
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 11-07-2012, 09:50 PM
Registered User
 
Last photo:
Join Date: May 2010
Location: san francisco CA
Posts: 131
Wiki Edits: 0

Thanks: 17
Thanked 0 Times in 0 Posts
disc brake way to sensitive.....

hello
I just convert my 71 nova to disc brake
everythings works fine.... may be way to much...

i have to be very carrefull with the pedal , and dont push all the way because
the brakes will lock the wheel

what can i do ?
thanks

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 11-07-2012, 10:30 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 12,799
Wiki Edits: 326

Thanks: 744
Thanked 959 Times in 808 Posts
Quote:
Originally Posted by Vincentnova View Post
hello
I just convert my 71 nova to disc brake
everythings works fine.... may be way to much...
i have to be very carrefull with the pedal , and dont push all the way because
the brakes will lock the wheel
what can i do ?
thanks
Are you using the manual brake pedal and not the power brake pedal? Manual has a ratio of around 7:1, power has a ratio of around 4:1.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 11-07-2012, 10:32 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Quote:
Originally Posted by Vincentnova View Post
hello
I just convert my 71 nova to disc brake
everythings works fine.... may be way to much...

i have to be very carrefull with the pedal , and dont push all the way because
the brakes will lock the wheel

what can i do ?
thanks
Did you swap in a disc brake master cylinder? Or at least disable the residual pressure valving. Otherwise the residual pressure valve can hold pressure on the caliper, causing the brakes to drag and possibly overheat after driving for a while. This can also make the brakes touchy, but the main problem is brake drag and the drum master cylinder having the wrong bore size.

If that's OK you can increase the master cylinder bore diameter or decrease the caliper bore diameter, or decrease the pedal ratio.

I would try the pedal ratio first. See if you can move the clevis to a hole nearer the pedal than where it is now. This may also require an adjustment to the pushrod length.


Last edited by cobalt327; 11-07-2012 at 10:49 PM.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 11-07-2012, 10:33 PM
Member
 
Join Date: Apr 2004
Location: Cassville,MO
Posts: 810
Wiki Edits: 0

Thanks: 21
Thanked 42 Times in 38 Posts
please ignore my post

Last edited by tresi; 11-07-2012 at 10:45 PM.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 11-08-2012, 12:09 AM
Registered User
 
Last photo:
Join Date: May 2010
Location: san francisco CA
Posts: 131
Wiki Edits: 0

Thanks: 17
Thanked 0 Times in 0 Posts
ok coool sounds good
i have a brake pedal from a 72 chevelle disc brake
Ill swap it
thanks a lot
Reply With Quote Quick reply to this message

Tags
brakes, pedal ratio

Recent Suspension - Brakes - Steering posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help with 68 camaro emergency brake install disc brake jdp2603 Suspension - Brakes - Steering 4 02-13-2010 07:56 AM
Will a Brake Master Cyl. Designed for Disc/Drum be Adequate for 4-Wheel Disc Brakes? mrwumper Suspension - Brakes - Steering 3 04-16-2009 09:38 AM
Street Rod brake pedal too sensitive !! HELP!! hemi43 Suspension - Brakes - Steering 3 11-07-2006 11:44 AM
Mecanical disc brake caliper for parking brake? bigun Suspension - Brakes - Steering 4 12-15-2005 08:43 PM
Why are some people so sensitive? CET Hotrodders' Lounge 14 02-23-2003 06:41 AM


All times are GMT -6. The time now is 05:10 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.